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31 Oct 2021

Given information

It is given that the wire is 5.4 m long and its diameter is 1.5 mm. It is also known that the resistivity of Copper is

Step-by-step explanation

Step 1.

 

Area with diameter, d

 

 

The resistance (R) of a resistor is related with the resistivity of it’s material (ρ), it’s length (l) and the cross-sectional area (A) as,

 

Where,   d is the diameter of the resistor.

 

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